import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome'
import Username from '../components/user/Username'
import Rights from '../components/power/Rights'
import Roles from '../components/power/Roles'
import Cate from '../components/goods/Cate'
import Params from '../components/goods/Params'
import List from '../components/goods/List'
import Add from '../components/goods/Add'
import Order from '../components/order/Order'
import Report from '../components/report/Report'
Vue.use(VueRouter)

const routes = [
  {path:'/',redirect:'/login' },
  {path:'/login',component:Login},
  {path:'/home',
  component:Home,
  redirect:'/welcome',
  children:[
    {path:'/welcome',component:Welcome},
    {path:'/users',component:Username},
    {path:'/rights',component:Rights},
    {path:'/roles',component:Roles},
    {path:'/goods',component:Cate},
    {path:'/params',component:Params},
    {path:'/categories',component:List},
    {path:'/goods/add',component:Add},
    {path:'/orders',component:Order},
    {path:'/reports',component:Report}
  ]}
]

const router = new VueRouter({
  routes
})
//挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  //to 将要访问的路径
  //from 那个路径跳转而来
  //next 是一个函数，表示放行
  // next() 放行  next('/login') 强制跳转

  if(to.path ==='/login')return next()
  //获取token 
  const tokenStr= window.sessionStorage.getItem('token');
  if(!tokenStr)return next('/login');
  next()
})
export default router
